Home / 100,729.86-151,100.18-25,850.65

Finding the Fourth Proportional to 100,729.86, 151,100.18 and 25,850.65

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Solution

The fourth proportional to 100,729.86, 151,100.18 and 25,850.65 is: 38,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,729.86 : 151,100.18 = 25,850.65 : x
  2. Step 2: Convert to fraction form
    100,729.86/151,100.18 = 25,850.65/x
  3. Step 3: Cross multiply
    100,729.86x = 151,100.18 × 25,850.65
  4. Step 4: Simplify right side
    100,729.86x = 3,906,038,311.75
  5. Step 5: Solve for x
    x = 3,906,038,311.75/100,729.86
  6. Step 6: Final answer
    x = 38,777.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.